Fabric-spreading apparatus



Sept. 13,1927. F HINNEKENS y 11642,'4-96 FABRIC SPREADING APPARATUS y 2 Sheets-Sheet 2 h Filed Aug. 2l. 1926 Patented Sept. 13, 1927.y

FLoianNT HINNEi/ziinaor rarnnsomnnw JERSEY.'

FABRIC-@READING nrrARAT-us.

Application filed August 21, 1926. Serial No. 130,629.

The present yinvention relates to apparatus whereby a strip of fabric is transversely varied in extent, as stretched transversely. The stretching instrumentality employed in" such apparatus comprises abody in the form of a cylinder or roll, each end portion of which includes a group of longitudinally andindividually movable slats or portions, and internal cams with which said slats or portions in the two groups are respectively engaged, the same being st-atinary but said bodybeing revoluble about them, to the Aend that when the fabric is advanced in' frictional gripping relation to and partial Vperipheral contact with said y body and hence the latter is rotated the slats will move back andy forth, i. e., each pair of alin'ed slats' (one in each group) will move alternately apart andvtoward each other in each revolution ofsaid body, obviously re-l sulting ina stretching of the fabric if the cams are so rotat-ively positioned that the oppositely related slats which are in actual contact therewith are at that time undergoing theseparating part of their movement.

Usually a single stretching action imparted bythis device is not-suiiicient, and so it is customary 'to run the strip backward and then torun it forward again subject to the action `of this device," repeating .these operations until the desired stretch 1s attained: there is the objection that the backward runs are idle operations because then the oppositely relatedslats which are in contact with the vgoods are at that time undergoing that part of the rotary rmovement in which they move together. v Now it is the principal obso'that the "revolving body Vwill function to stretch the goods when it is rotated in either direction, thus to vavoid idle passes or runs ofthe fabric in one direction and producev stretching when the fabric is advanced in either` direction. This I accomplish bypro.v viding for automat-ic reversalof the cams.I to

witg-by arranging them so'that when, foll lowing a runof the 'fabric in one direction,

.l A the fabric liskad-vanced in the opposite direction they will lbe'rotated a limitedv dis- Cal tance (suflicient to reverse them) Aand hence setto the position for again causing the alined slats lin the two groups which are in actual contact with the fabric to move apart for,l stretching.

In the drawings,

Fig. l shows the improved device em- ]ect of this invention to construct the device v3 is a view mainly in longitudinal section of the revolving stretching body or roll, the cam-including structure and one of the latters bearing-supports; l'

Figs. 4 and 5 are sections on lines and 5 5, Fig. 3; and Fig. 6 shows the sleeve of the aforesaid revolving body or stretching roll.V

Said revolving body or roll may have the same construction asthose now in use, to wit: A sleeve or corel has around it a shell whose intermediate part is composed of longitudinal slats 2 (Fig. 2)y riveted or otherwise fixed toit and each of whoseV terminal partsy is composed of longitudinal slats 3 capable Yof movement back and forth lengthwise of the core l, they being for that purpose provided with inwardly projecting studs i which'have spaced flanges or heads 5 and slide in slots 6 in the core or shell with the. spaced flanges receiving the edges of the slots between them; the slots havejkeyholeshape (Fig. V6) yto permit assembling of the thusv double-headed studs therewith. This specific construction of the body or roll is not of course material: it is only material that the body or roll shall be capable of being revolved by a. moving fabric (as A) held in partial peripheral contact therewith (as in drawing and hence unwinding the fabric from the roll B thereof in Fig. l or winding it up to form such roll) and that as to at least one end or` other part of the body orrroll its periphery shall be composed of slatsv or portions (as those at one end) which are individually movable lengthwise of saidbody or roll toward and from another partof the latter as the slats or portions at the other end) in order to produce stretching of the fabric.

This body or roll is revoluble concentrically with respect to a cam structure here including aA shaft` 7 extending through said body or roll and cams 8 within the latter liXedv (as pinned) tothe shaft. Each cam has acontinuous peripheral groovey or camway 8a pitched as to the two halves thereof inV opposite directions; the two cams are most portions and two outermost portions ot their cznnwigrn :tro rbpectireltY oppofiito czich other. or zo thnt tor one-hnlt ot the. circnnii terence tbe cznnn'nys converge and `t'or the other onedinll" the)v diverge. The zinnmys receive the @todol tt of the Slots 23. rliutidricilion bearing@4 il, in buehings l0 secured in the ende; ot Sleeve or core l, nietv support' the body or roll nctunlljr on the coin structure 7 8.

An to the operation oll the inecbnniflin so 'fair described: resounding the coin strncture to be snpported :is :shown :i'or exzzinple in Figs. l :ind 2 and the body or roll to be revolved by i fabric A. movingin contzict tlufrewith, it the coni structure be held :temine-.t rotation :ind iii' the -nxnwnys he positioned that their diverging portions :ire operntite on thoee shits il with Which the Ltinbrie linppens: to be in contact Seid Sluts will in connetpientl)- moving :tpert` stretch the linhric, trnnsrerriely 'ttcrotot'orete Qt t'eth whenever more thon one otrcteliin;l wir; retpiired this could not he :treniniilinhed in :i return or bnclm'ord run ol the 'linbric bccznnse then the working' portions ot the cznnn'nys would be conrergently instead ol: divergently related. Tilherotore. nccordinr;r to my invention the coni structnre i revoluble n. limited extent (holt :L rm'olntion) in its Supporting ineens ns' to reverSe itsclt. that so that when the Yhihric is Stan-ted on e reverse run the cznn Structure will tolte the position Where the halves olf its cninwziys which were convergent with relation to :1nd hence cnnased the rotating series ot shite to inovc togethei.' in their previous direction ot rotation will now be divergenti with .respect to the new or opposite direction ot rotation ot the series ot shit-s. 'Io this end the ljlfoclets l1 :ire 'tornied witlrhtntsingrn li. n'hi fh contain untiiiriction benrings l?) for the ende o t the Shi'lit T: these bookings muy hure inflide covers lftll bolted thereto und penetutzed by the filni'lt. The sluilt has u coller t5 fixed thcreto zuid termed, with o Stop or projection lt'. The housing' toinled innide with two stops li' .Cio positioned thot stop A1G engaged one or the other olf them on turniiiggj the shnf't o linllrevolution.

',lhun. following :i run ot the it'ebric in one direction und ut the inception ot o rereri'fe run the cuni etrncture turned in its been inet` by the drug ot' the body or roll :1c-ting thereon (to wit` b v the engagement o'lE .its studs t in the commits). being' checked by the Slope; n'hcn :i helli-revolution in coniplet'ed or the cunts, reversed. so that thoee hottes` olE the 'ions previously rioting;` to more the shite, ttioet'her will non' be Actingv to more the Sluts eport. und :Qince the slats so ntl'ected :ire those actually englnged by the tnbric the lutter willbe tronf-:versely stretched.

mete/too ylfhe honfelnggge 1L not onlyY :Sirve to contain lubricnnt but :is .sei'lfety guards :tor the partis they.' enclose.

l do not n'ifah to be limited to the inns ticino` rcroluble, coneentricnily with respect to the roll or body, or in tert: to their beingl re'fohihle nt :ill: it if: sullicient that each czn'n, bovine' n unioni lfornied with two portions ot' ontantanitiiilljt` eonnl length :1nd opynisitely oblique to the ir-:is ot revolution ot sind body or roll, in nhiltzible buck :ind lortb, reiolubly` or othernirie. lnv und with eoid bodyv or roll und that there be niezinn (no ,stops 1T) to liinit` tl e shitting' ot the conmv one wey or the othe :i difltnnce equal to the length ot catch nuria oblique contentv portion.

llnvinp; thun nlly described my invention wlmiY l clniln :ind desire to ,secure by Letters llntent is:

l. fln conibinotion. fnunjiorting menne, ineen4 to chungo thi` width :rlE :i 'li'obric in chilling' i bod)y rerolnble in euch direction on :in ortie extending;l therethrough und ndnpted to he revolved by the tizilnzic when the .hitter :idvnnced in one direction or the othtr in pcriphcnl contnct therewith und hinfne' the hibrioengnged periphery ot n port thereof coniponed olt portioi n niovzible individually lenizthnine ot seid exis relu` tively to the iric-eiiifnpged periphery olf :tnothcr porti ot mid body, :md :t 'tun Structure boring;` :i cnnlwny t'orined with two portienel ol soilistnntinlly eq tol length nnd op` positel)v oblique to Suid exis und arranged o he cngngretl by .Quid portions ot' Enid hotly 'when rotating. .fioid cuni structure beine' shi'tftnble by :und with :mid bod;v :is the lutter rondes one mijn or the other, :ind the snpport in omenus burin; menne to liinit the shitting; ot' the funi structure one voy or the other :i dintonce substnntinlly equal to the lcnntb olf' one ot ita` seid onorari; lviortions.

Thot opecilie enibodintent otI the coinbinution eet torth in cliiini l in which tho cuni .-'tru ,-ture in rahi'l'tnble around the axis; ol" rotfition o E :mid hotljy'or roll.

3. Thot ilpecitic embodiment ot the coin.- hinntion Het. :forth in rhiiin if in which the, sluliportinc wenn` inchnlrf` :t hounine contiiiningr the ineiine4 to liinit the shitting of the coin structure one not' or the other.

it. 'lhntnpeeilic embodiment oit the coinhinntion Set t'orth in clziini Il in which the com svitructnre it: fhi`t`tinblc nronnd the artis ol iotzition ot Afsiiid body or rollv sind in which the |mipportinpr niennr:v includes n hou# in;v in which the coin structure is `ionrnnled ond containing` the incurs to liinit the shitti' ir ot the funi structure one way or the other.

in testimoniv whereol l :dln: my signzttftn'e.

FLORENT HINNEKENS.

llt) 

